I saw a look of concentration on Dad's face, and then I could feel his c**k head slipping around my ring, just pressing into it a little. Mum had my cheeks open again. I think she wanted to watch as much as I needed her to spread me.
He seemed to find the centre of my asshole then, and I relaxed as I felt him begin to press at it harder. For a moment, I didn't think it was going to go in, and then suddenly he had pushed into me an inch, his mushroom head opening me up. He felt hot and huge back there.
'Relax, honey,' Mum said. 'You can take your Daddy's cock.'
At the Academy, we had practiced with small butt plugs a little, but I had found it hard to get the hang of. Plus they weren't anywhere as big as Daddy was.
He grunted and pushed forward again. I gasped as I felt my ring open wid
